The table below looks at the statistics for Log4j skills in IT jobs advertised across the UK. Included is a guide to the average salaries offered in IT jobs that have cited Log4j over the 3 months to 27 May 2015 with a comparison to the same period in the previous 2 years.

Location
3 months to
27 May 2015
Same period 2014 Same period 2013
Apache Log4j
Rank 863 908 867
Rank change year-on-year
+45 -41
Permanent jobs citing Log4j 29 38 26
As % of all permanent IT jobs located in the UK 0.027% 0.032% 0.024%
As % of the Development Applications category 0.16% 0.20% 0.16%
Number of salaries quoted 16 35 21
Average salary £37,500 £47,000 £38,500
Average salary % change year-on-year
-20.21% +22.07%
90% offered a salary of more than £35,000 £35,000 £30,000
10% offered a salary of more than £55,000 £85,000 £52,500
UK excluding London average salary £39,250 £45,000 £35,000
% change year-on-year
-12.77% +28.57%

The following table is for comparison with the above and provides statistics for the entire Development Applications category in permanent jobs advertised across the UK.

Development Applications Category
UK
Permanent IT job ads with a match in the
Development Applications category
17843 19179 15997
As % of all permanent IT jobs located in the UK 16.51% 16.22% 14.80%
Number of salaries quoted 14903 16154 13633
Average salary £45,000 £45,000 £42,500
Average salary % change year-on-year
- +5.88%
90% offered a salary of more than £32,500 £30,500 £30,000
10% offered a salary of more than £65,000 £62,500 £65,000
UK excluding London average salary £42,500 £40,000 £38,500
% change year-on-year
+6.25% +3.89%

Log4j
Jobs Demand Trend

This chart provides the 3-month moving total of permanent IT jobs citing Log4j within the UK as a proportion of the total demand within the Development Applications category.

Log4j Jobs Demand Trend in the UK

Log4j
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Log4j within the UK.

Log4j Salary Trend in the UK

Log4j
Salary Histogram

This chart provides a salary histogram for IT jobs citing Log4j over the 3 months to 27 May 2015 within the UK.

Log4j Salary Histogram in the UK

Log4j
Top 12 Job Locations

The table below looks at the demand and provides a guide to the average salaries quoted in IT jobs citing Log4j within the UK over the 3 months to 27 May 2015. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location
(Use links below to see detailed
statistics and historical trends)
Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Average Salary
Last 3 Months
Average Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +39 29 £37,500 -20.21%
London +24 21 £37,500 -37.50%
City of London +39 7 £37,500 -55.88%
South East +17 5 £23,500 -44.70%
Reading - 4 - -
Uxbridge - 4 - -
Berkshire - 4 - -
Midlands - 2 - -
Chessington - 2 £35,000 -
Hampshire 0 1 £23,500 -44.70%
Southampton - 1 £23,500 -
West Midlands - 1 £55,000 -

Log4j
Top 30 Related IT Skills

For the 6 months to 27 May 2015, IT jobs within the UK citing Log4j also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited Log4j.

1 67 (100.00%) Java
2 62 (92.54%) JavaScript
3 56 (83.58%) JSP
4 52 (77.61%) Web Services
5 51 (76.12%) Servlets
6 50 (74.63%) Hibernate
7 49 (73.13%) Oracle
8 48 (71.64%) XML
9 46 (68.66%) J2EE
9 46 (68.66%) Tomcat
10 45 (67.16%) HTML
11 42 (62.69%) JUnit
11 42 (62.69%) Linux
12 40 (59.70%) Apache
13 39 (58.21%) Maven
14 38 (56.72%) Spring
14 38 (56.72%) Subversion
15 37 (55.22%) CSS
15 37 (55.22%) jQuery
15 37 (55.22%) Jenkins
16 35 (52.24%) Agile Software Development
16 35 (52.24%) Git (software)
17 34 (50.75%) Ajax
17 34 (50.75%) WebSphere
18 31 (46.27%) TDD
18 31 (46.27%) SQL Server
19 29 (43.28%) XSLT
20 27 (40.30%) JBoss
20 27 (40.30%) E-Commerce
20 27 (40.30%) MySQL

Log4j
Top Related IT Skills by Category

For the 6 months to 27 May 2015, IT jobs within the UK citing Log4j also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of IT job ads sampled that cited Log4j. Up to 20 skills are shown per category.

Application Platforms
1 46 (68.66%) Tomcat
2 40 (59.70%) Apache
3 34 (50.75%) WebSphere
4 27 (40.30%) JBoss
5 25 (37.31%) WebLogic
6 12 (17.91%) WordPress
6 12 (17.91%) Adobe Experience Manager
7 11 (16.42%) ATG Dynamo
8 9 (13.43%) WebSphere Application Server
9 8 (11.94%) WebLogic Portal
9 8 (11.94%) Liferay
10 4 (5.97%) MQSeries
11 2 (2.99%) SAS
Communications & Networking
1 8 (11.94%) SMTP
2 4 (5.97%) HTTP
2 4 (5.97%) Internet
2 4 (5.97%) LDAP
Database & Business Intelligence
1 31 (46.27%) SQL Server
2 27 (40.30%) MySQL
3 21 (31.34%) Relational Database
3 21 (31.34%) RDBMS
4 12 (17.91%) PostgreSQL
4 12 (17.91%) MongoDB
4 12 (17.91%) Hadoop
5 11 (16.42%) Oracle Database
6 8 (11.94%) Apache Cassandra
6 8 (11.94%) NoSQL
6 8 (11.94%) Jackrabbit
7 4 (5.97%) Couchbase
7 4 (5.97%) CouchDB
Development Applications
1 42 (62.69%) JUnit
2 39 (58.21%) Maven
3 38 (56.72%) Subversion
4 37 (55.22%) Jenkins
5 35 (52.24%) Git (software)
6 23 (34.33%) Ant
7 21 (31.34%) Eclipse
8 16 (23.88%) Selenium
9 15 (22.39%) JIRA
10 14 (20.90%) TestNG
11 12 (17.91%) Bitbucket
11 12 (17.91%) Gradle
12 6 (8.96%) JBehave
12 6 (8.96%) WebSphere Studio Application Developer
12 6 (8.96%) JDeveloper
13 5 (7.46%) IntelliJ
14 4 (5.97%) HttpUnit
14 4 (5.97%) Mockito
14 4 (5.97%) Cucumber
14 4 (5.97%) Grunt
General
1 22 (32.84%) Retail
2 8 (11.94%) Publishing
3 2 (2.99%) Banking
3 2 (2.99%) Manufacturing
3 2 (2.99%) Billing
4 1 (1.49%) Finance
Job Titles
1 36 (53.73%) Developer
2 32 (47.76%) Java Developer
3 13 (19.40%) Senior Developer
3 13 (19.40%) Senior Java Developer
4 11 (16.42%) E-Commerce Specialist
5 10 (14.93%) Java/J2EE Developer
6 8 (11.94%) Senior Java/J2EE Developer
6 8 (11.94%) Java Programmer
6 8 (11.94%) Senior J2EE Developer
6 8 (11.94%) Programmer
6 8 (11.94%) J2EE Developer
7 6 (8.96%) Software Engineer
8 4 (5.97%) Cisco Engineer
8 4 (5.97%) Technical Leader
8 4 (5.97%) Mid-Level Java Developer
9 3 (4.48%) Software Developer
10 2 (2.99%) Java Software Developer
10 2 (2.99%) J2EE Software Engineer
10 2 (2.99%) Front-End Developer
11 1 (1.49%) Graduate Java Developer
Libraries, Frameworks & Software Standards
1 56 (83.58%) JSP
2 52 (77.61%) Web Services
3 51 (76.12%) Servlets
4 50 (74.63%) Hibernate
5 48 (71.64%) XML
6 46 (68.66%) J2EE
7 45 (67.16%) HTML
8 38 (56.72%) Spring
9 37 (55.22%) jQuery
9 37 (55.22%) CSS
10 34 (50.75%) Ajax
11 29 (43.28%) XSLT
12 27 (40.30%) REST
13 24 (35.82%) RESTful
13 24 (35.82%) JSON
14 21 (31.34%) JMS
15 18 (26.87%) Struts
15 18 (26.87%) HTML5
16 17 (25.37%) JDBC
16 17 (25.37%) JPA
Miscellaneous
1 16 (23.88%) Client/Server
2 9 (13.43%) User Experience
3 8 (11.94%) Analytical Skills
3 8 (11.94%) Data Structures
3 8 (11.94%) Algorithms
4 6 (8.96%) Mobile App
4 6 (8.96%) Social Network
4 6 (8.96%) Web 2.0
4 6 (8.96%) Computer Science
5 5 (7.46%) Wiki
5 5 (7.46%) Blog
6 4 (5.97%) Cryptography
7 2 (2.99%) Online Gambling
8 1 (1.49%) W3C
Operating Systems
1 42 (62.69%) Linux
2 20 (29.85%) Android
3 13 (19.40%) UNIX
4 12 (17.91%) openSUSE
4 12 (17.91%) Ubuntu
5 8 (11.94%) Apple iOS
5 8 (11.94%) Windows
6 4 (5.97%) HPUX
6 4 (5.97%) Solaris
Processes & Methodologies
1 35 (52.24%) Agile Software Development
2 31 (46.27%) TDD
3 27 (40.30%) E-Commerce
3 27 (40.30%) Use Case
3 27 (40.30%) Continuous Integration
4 22 (32.84%) Unit Testing
4 22 (32.84%) UML
4 22 (32.84%) OOA/OOD
5 19 (28.36%) OO
6 13 (19.40%) Software Engineering
7 11 (16.42%) Project Management
7 11 (16.42%) Quality Management
7 11 (16.42%) Cutover Planning
8 8 (11.94%) SDLC
8 8 (11.94%) User Stories
8 8 (11.94%) Android Development
8 8 (11.94%) iOS Development
8 8 (11.94%) Migration
8 8 (11.94%) Asset Management
8 8 (11.94%) SOA
Programming Languages
1 67 (100.00%) Java
2 62 (92.54%) JavaScript
3 27 (40.30%) SQL
4 14 (20.90%) PL/SQL
5 12 (17.91%) Perl
5 12 (17.91%) PHP
5 12 (17.91%) XPath
6 11 (16.42%) Shell Script
7 8 (11.94%) ECMAScript
7 8 (11.94%) XQuery
8 6 (8.96%) C
9 2 (2.99%) Bash Shell
Qualifications
1 9 (13.43%) Degree
2 3 (4.48%) Sun Certification
Quality Assurance & Compliance
1 9 (13.43%) QA
System Software
1 12 (17.91%) Docker
2 8 (11.94%) VMware Infrastructure
Systems Management
1 20 (29.85%) Opscode Chef
2 12 (17.91%) Salt
2 12 (17.91%) Puppet
Vendors
1 49 (73.13%) Oracle
2 12 (17.91%) IBM
3 11 (16.42%) ATG
4 8 (11.94%) VMware
4 8 (11.94%) Adobe
5 6 (8.96%) Coverity
5 6 (8.96%) Guidewire
6 4 (5.97%) Cisco
6 4 (5.97%) Interwoven
7 3 (4.48%) Sun